1. Yellow characters on red background: This color scheme looks more gorgeous, full of the flavor of China traditional culture, and makes people feel a strong festive atmosphere from the inside out. Therefore, if you are celebrating traditional festivals such as Spring Festival and Mid-Autumn Festival, yellow characters on a red background will be more appropriate.
2. White characters on red background: This color scheme is more fresh and concise, giving people a beautiful, comfortable and refreshing feeling. If it is in a modern college or some occasions that need to highlight the modern atmosphere, white characters on a red background will be more appropriate.
To sum up, different occasions and personal preferences will affect the preference for yellow characters on red background and white characters on red background. So, which is better, there is actually no unique answer.